家蚕品种飞·鹤×祥·云原原种主要性状的统计分析

Statistic and Analysis of Principal Features of original seed of Silkworm Variety Fei·He×Xiang·Yun

为了掌握家蚕品种飞.鹤×祥.云原原种长期繁育过程中存在的种性退化现象,采用数据分析软件检测其2003-2010年间主要性状的变异性和相关性。结果表明:4个原种的全茧量、茧层量、茧层率、幼虫生命率的变化均较小,死笼率的变化范围较大,基本保持了该品种的优良种性。

In order to reveal the species degeneration of silkworm variety Fei · HeX Xiang · Yun in long production process, the data analysis software was used to detect the variability and correlation of the species from 2003 to 2010. The results show that the weight of whole cocoon, the amount of cocoon shell, cocoon shell rate and larval survival rate experienced considerable variation,while the rate of dead silkworm larvae in cocoon varied in a large range, which maintained the superior variety character.